CBSE Class 10 Answered
- Prove that tan70º=2 tan50º +tan 20º
- Find the value of sin 50º-sin 70 +sinº
- If sinθ1 + sinθ2 +sinθ3= 3, then cosθ1 + cosθ2 +cosθ3 =?
Asked by Shambhu Nath Pandey | 11 Dec, 2015, 04:07: PM
Expert Answer
Answered by Vimala Ramamurthy | 12 Dec, 2015, 01:44: PM
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